John c



(No Model ,0. & Hm T 0H 0 B m .F CH ,.m TUE R W ,1192. Patented Jan. 8; 1895.

i Armar' trice.

tiairren STATES JOHN O. BOOTH, OF BROOKLYN, NEW YORK, ASSIGNOR TO J. Il. WILLIAMS dr OO., OF SAME PLACE.

WRENCH FOR -PIPES, 89C.-

SPECIFICATION forming part of Letters' Patent No. 582,192, dated January 8, 1895. Application led October 1'7, 1 8944. Serial No. 526,151- (No model.)

To ctZZ whom t maycolwern.- the wrench partly in section and without the Be it known that I, JOHN C. BOOTH, a citichain. Fig. 4 isa cross section of a modifizen of `the United States, residing at Brookcation in the jaw and the shape of the end lyn,in the county of Kings and State of New link, and Fig. 5 shows the face of one of the 5 York, have invented an Improvement in jaws with integral hooks. y 55 Wrenches for Pipes, dac., of which the follow- The handle A is rigidly connected to the ing is a specification. jaws B B and advantageously such handle Wrenches have heretofore been made in passes in between the jaws and into grooves which elliptical and tapering jaws with teeth in their inner surfaces, and the cross pin or ro on their edges have been combined with a bolt 2 permanently connects the jaws to the 6o chain that is wrapped around the pipe or cirhandle. These jaws may be either circular cular article and retained by a hook or hooks. or more or less elliptical or pointed and they In this class of wrenches one'end of the chain are provided with teeth upon their edges. has been permanently fastened by a rivet or In the surfaces of the jaws there are grooves 15 screw so as to remain in a fixed position. 4` that are parallel or nearly so to the edges 65 My present invention relates to the comof thejaws, and I prefer to make these grooves bination with a chain and jaws having teeth 4 upon the interior and opposite faces of the upon their edges and the handle connected jaws, asshown in Figs. 1, 2, and 3, but where with the jaws, of an end piece having lateral a single jaw B2 is made use of the grooves 4 zo projections that pass into grooves in the can be made upon the exterior surfaces of 7o faces of the jaws so that the end that is per such jaw and the handle A 'can be forked at manently connected` with the jaws can be its end to pass into longitudinal recesses in slipped along to any desired position in'relathe outer faces of the jaw B2 so that the jaw tion to such jaws before or at the time that B2 can be slipped in between the jaw or 25 the chain is wrapped around the pipe and prongs of the handle and secured by. a bolt 75 hooked onto the jaws or handle, so that when or rivet. A the handle is moved to tighten the chain The chainCis made oflinks of anydesired and to rotate the pipe, the end of the chain character. I prefer and use plate links with i with its lateral projections will draw ed subtransverse rivets, and the ends of the rivets go stantially at right angles to the surfaces of may project so as to engage the hooks 5 upon 8o the grooves into which such lateral projec the jaws B B', or there may be any suitable tions are received and thereby the chain will hooks either upon the jaws or upon the hanbe brought into contact with as large a surdle to engage the chain, s uch for instance as face around the pipe as it is possible and in-V the hooks in Patent No. 377,795, granted Feb- 3 5 crease the hold of the chain upon the pipe ruary 14, 1888, to J. H. Williams, or the hooks 8 5 and lessen the risk of injury to the pipe, in PatentNo.499,50S,granted.lunel3,1893,to and the connections between the chain and Booth and Redfield, it being understood that the jaws with their lateral projections willl any desired character of hooks or engaging slide or move along in the grooves when the devicesfor the loose end of the chain may be 4o wrench is being applied to the pipe according made use of in connection with the present 9o to the size of the pipe and the position of wrench. The end of the chain that is permathe wrench to such pipe, and this gives great nently fastened to the jaws is provided with facility for applying the wrench, because the a linkD having lateral projections that enter chain can loe tightened in either direction the grooves 4. When the link D is adapted 45 around the pipe according to the position of to pass in between the jaws, as in Figs. 1 and 95 the pipe to the jaws and the movement of the 2, the lateral projections 6 are on the outer handle. edges of such link D and form with the same In the drawings, Figure l is a side elevation a T head, the projections passing in opposite of the wrench. Fig. 2 is a cross section at directions into the grooves 4 in the. inner 5o the line o; a: of Fig 1. Fig 3 is a plan view of faces of the jaws. Where the grooves are on Ico j link D or D can be slipped along into any desired position near the edge of the jaw or jaws, and the chain O extending from the link can be passed in either direction desired around the pipe or circular article and hooked to the jaws or handle, and as soon as the chain is tightened by a movement of the lever handle the lateral projections of the link will "slide more or less within the grooves of the jaw so that such link will occupy a position nearly perpendicular to the edge of the jaw and will allow the chain to encircle the pipe and press evenly upon its surfaces, and at the same time the teeth in the edge of the jaw will press into such pipe to a sufficient extent to insure the rotation of such pipe by the wrench.

I have represented at 8 by dotted lines hooks upon the handle A, but I sometimes make hooks 9 by slots cut directly into the edges of the jaws B or B at one or both sides of the handle and near to such handle (see Fig. so as to form a direct and reliable connection between. the chain and the jaws.

Where but one jaw is shown, as illustrated in Fig. 4, the chain lies upon the periphery or exterior edges of such jaw, but where two jaws are used, as shown in Figs. l and 2, the chain itself may pass in between such jaws and the projecting pivot pins of such chain maylie against the surfaces of the jaws so as to 'allow-for the projecting ends of the pivot pins passing into the slots and being received by the hooks upon the edges of such jaws.

In Figs. l and 3 I have shown the hooks 5 upon separate plates B3 grooved to set upon the sides of the handle and resting at their edges against the back edges of the jaws and secured by a cross bolt as this construction allows for the removal of any injured part of the wrench.

I claim as my inventionl. The combination with the lever handle and chain in a wrench, of a jaw permanently connected with the handle and having grooves in its faces parallel orvnearly so with the edges of the jaw, and a link connected at one end tothe chain and having lateral projections at or near the other end to pass into the grooves of-the jaw, substantially as set forth.

2. The combination with the handle and chain in a pipe wrench, of two jaws secured at one end of the handle and at opposite sides thereof and having grooves in their inner faces parallel or nearly so with the edges of the jaws, and a link connected with one end of the chain and having lateral projections forming a T head, which projections pass into grooves in the inner faces of the jaws, substantially as set forth.

3. The combination in a wrench, of a handle, two jaws permanently connected at one end of the handle and having grooved surfaces and hooks upon the edges of the jaws adjacent to the handle, a chain having projections adapted to engage the hooks on the jaws that are adjacent to the handle, and a link at one end of the chain having lateral projections topass into the grooves of thejaws, substantially as set forth.

4. The combination with a handle, of two jaws that are nearly circular and recessed upon their inner faces to receive the handle,

and a cross pin or rivet for securing the parts together, the jaws having grooves in their faces parallel or nearly so to the edges of the jaws, a chain adapted to pass around the pipe, andan end link to the chain having lateral projections that engage the grooves in the jaw, and means for hooking the chain to the jaw or handle after the chain has been passed around the pipe or other article, substantially as set forth.

Signed by me this 9th day of October, 1894.

JOHN O. BOOTH. Witnesses:

HAROLD SERRELL, VILLIAM G. Morr. 

